Corn-planter.



S. K. DENNIS.

CORN PLANTER.

APPLICATION 111.51) APR. 26, 1911.

Patented Aug. 29, 1911.

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EOLUMBIA PLANOGRAPH COHWASHINGTONI D. C.

s. K. DENNIS.

CORN PLANTER.

APPLICATION TILED APR. 26. 1911.

Patented Aug. 29, 1911.

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s. K. DENNIS. CORN PLANTER.

APPLICATION FILED APR. 26, 1911.

Patented Aug. 29,1911.

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SAMUEL K. DENNIS, OF CHICAGO, ILLINOIS, ASSIGNOR TO INTERNATIONAL HAR-VESTER COMPANY, A CORPORATION OF NEW JERSEY.

FFltQEG OORN-PLANTEB.

Application filed April 26,

To all whom it may concern:

Be it known that I, SAMUEL K. DENNIS, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Corn-Planters, of whichthe following is a specification.

My invention relates to corn planters, and in particular to mechanismwhereby the furrow openers and the draft frame carrying the seeddropping mechanism are raised or lowered relative to the wheel frame,and it consists in an improved spring counterbalancing mechanismconnected with the draft and wheel frames in a manner assisting theoperator in effecting the desired adjustment thereof; the object of myinvention being to provide a mechanism simple and strong in constructionand efiicient in operation. This object is attained by means of themechanism illustrated by the accompanying drawing, in which Figure 1represents a top plan view of a corn planter having my invention forminga part thereof; Fig. 2 is a side elevation of part of Fig. 1; Fig. 3 isa detached detail of part of Fig. 2, designed to show the connectionbetween the raising and loweringmechanism and the automaticallyadjustable marker carrying arm; Fig. 4 is a side elevation of Fig. 1similar to Fig. 2, and designed to show the manner of adjusting thedraft frame relative to the wheel frame; and Fig. 5 represents adetached detail of the spring counterbalancing mechanism.

The same reference characters designate like parts throughout theseveral views.

1 represents the wheel frame of a planter, including a U-shaped memberhaving the front ends of its side members pivotally connected to draftbrackets 2 by means of pins 3, the draft brackets being secured to atransverse draft bar 4, having a drafttongue 5 adjustably connectedtherewith by means of tongue brace members 6 that have their rear endsconnected with the draft bar by means of interlocking pivotallyconnected bracket members 7 ,whereby the draft tongue may be adjusted atits front end to a higher or lower plane relative to the draft frame.

8 represents an axle journaled in bearings 9 secured to the side membersof the wheel frame and having carrying and traction Specification ofLetters Patent.

Patented Aug. 29, 1911.

1911. Serial No. 623,341.

wheels 10 mounted upon the opposite ends thereof.

11 represents bracket members secured to the rear end of the wheelframe, and 12 a transverse rock shaft journaled in the brackets andhaving wheel scrapers 13 secured to opposite ends thereof.

14 represents a longitudinally arranged rock shaft having its middleportion journaled in a bearing 15 secured to the wheel frame, and itsforward end in a bearing 16 mounted upon the axle.

17 represents a fork member secured to the front end of shaft 14, and amarker carrying arm (not shown) may be secured to its rear end.

18 represents a. fixed shaft forward of the axle, having the oppositeends thereof secured to the side members of the wheel frame.

19 represents seat supporting bars having their lower ends secured tothe rear ends of the side members of the wheel frame, and their upperends to a bar 20, to which is secured a seat 21, and 22 represents aforwardly and downwardly inclined bar having its upper end secured tobar 20, and its lower end to a toothed sector 23 concentric with thefixed shaft 18 and having a leg member 24 that is mounted upon saidshaft.

25 represents a hand lever provided with a common form of thumb lever 26and sliding detent mechanism 27 adapted to engage with the toothedsector in a well-known manner to retain the lever in any desiredposition of adjustment. The lower end of the hand lever is secured to anL-shaped bracket member 28 that is pivotally mounted upon the fixedshaft 18 in a manner to rock thereon and provided with a rearwardlyprojecting arm 29, said arm being provided at its rear end withlaterally diverging fork members 30 adapted to form foot rest members,and 31 represents rollers journaled upon the foot rest members andadapted to engage with the fork member 17 of the marker operatingmechanism.

32 represents a forwardly projecting arm forming part of bracket member28, to which is pivotally connected the upper end of a link 33, thelower end of the link being slidably received by an opening in the rearend of a bar 34 that is secured to the ends.

draft tongue, and 35 represents a compres-' sion spring that surroundsthe link and operative between the bar and a shoulder at the upper endof the link to yieldingly press downward upon the bar when the handlever is moved in a forward direction,

and a pin 36 prevents the link from dis,

engagement from the bar when the hand lever is moved in an oppositedirection.

37 represents a seed conduit having a forwardly extending bracketportion 38 at its upper end whereby it is secured to the draft bar 4,and 39 represents furrow opening shoes having their rear ends secured tothe lower end of the seed conduit and their forward upturned endsconnected with the bracket portion 38 by means of brace members 40. V

41 represents a depending swinging link having its upper end pivotallyconnected with an eye portion 42 at the rear end of a clip member 43that is secured to the lower side of the bar 34 intermediate its ends.

The lower end of link41 is provided wit-h transverse openings thatreceive the forward end of a yoke member 44, the yoke including sidemembers 45 that are spaced apart in a manner to allow the rear end ofbar 34 to pass between them when the hand lever is thrown in a forwarddirection toward the limit of its movement, the rear end of the yokeengaging with the forward hooked end of a link 46 that has its rear endpivotally connected with the arm 29 intermediate its The front end ofbar 34 is turned downward and provided with a longitudinally arrangedopening that adjustably receives the front threaded end of a link 47that is provided at its rear end with an eye 48 whereby it is connectedwith the forward end of a counterbalancing spring 49, the spring havingits rear end connected with an eye portion 50 intermediate the ends ofthe swinging link 41. Link 47 is provided with a nut 51 whereby thetension of the counterbalancing spring may be regulated.

When the hand lever is moved forward about its pivot the compressionspring 35 yieldingly rocks the draft frame about its pivotal connectionwith the wheel frame in a manner to cause the furrow opening shoes topenetrate a greater or less depth in the ground, and when it is movedrearward the link 33 lifts the rear end of bar 34 and thereby rocks thedraft frame in an opposite direction in a manner to raise the shoes fromthe ground, as shown in Fig 4, the counterbalancing spring assisting theeffort of the operator, and the two forces may be supplemented by meansof pressure upon the foot rest in a downward direction, the downwardswing of the foot rest operating to rock the marker carrying rock shaftin a manner to carry the marker from one side of the machine to theopposite side thereof.

What I claim as my invention, and desire to secure by Letters Patent,is:

1. A corn planter including, in combination, a draft frame, a wheelframe having its forward end pivotally connected with said draft frame,a draft tongue connected with said draft frame, a hand lever pivotallymounted upon said wheel frame, a bar secured to said tongue and extendedtoward said wheel frame, a link connection between the rear end of saidbar and said hand lever, a pendent swinging link having one endpivotally connected with said tongue, a rearwardly disposed linkconnection between the opposite end of said link and said hand lever,said link connection with said hand lever being below the axis thereof,and a forwardly disposed counterbalancing spring connecting the oppositeside of said swinging link with said draft tongue. 7

2. A corn planter including, in combination, a draft frame, a wheelframe having its forward end pivotally connected with said draft frame,a draft tongue connected with said draft frame, a hand lever pivotallymounted upon said wheel frame and having forwardly and rearwardlyextending arms forming a part thereof, a bar secured to said drafttongue and extended rearward therefrom toward said hand lever, and alink connection between the rear end of said bar and the forwardlyextending arm of said hand lever, a pendent swinging link having one endpivotally connected with said draft tongue, the opposite end of saidlink being flexibly connected with the rearwardly extending arm of saidhand lever, said flexible connection including a yoke having sidemembers spaced apart in a manner to receive the rear end of the drafttongue extension between them, and a counterbalancing spring connectingsaid swinging link with said draft tongue.

3. Acorn planter including, in combination, a draft frame, a wheel framehaving its forward end pivotally connected with said draft frame, adraft tongue connected with said draft frame, a hand lever pivotallymounted upon said wheel frame and having forwardly and rearwardlyextending arms forming a part thereof, said rearwardly extending armbeing provided with rearwardly diverging fork members adapted for footrests, a bar secured to said draft tongue and extended rearwardtherefrom toward said hand lever, and a link connection between the rearend of said bar and the forwardly extending arm of said hand lever, apendent swinging link having one end pivotally connected with said drafttongue, the opposite end of said link being flexibly connected with therearwardly extending arm of said hand lever, said flexible connectionincluding a link having its rear end pivotally connected with said armand link, and a oounterbalanoing spring oonnectits forward end with therear end of a yoke, ing said swinging link with said draft said yokehaving side members spaced apart tongue.

in a manner to receive the rear end of the SAMUEL K. DENNIS. drafttongue extension between them and Witnesses:

having their forward ends pivotally con- EVAN EVANS,

nected with the lower end of said pendent HERBERT DEKKER.

Copies of this patent may be obtained for five cents each, by addressingthe "Commissioner of Patents, Washington, D. O.

